In the process of using the bridge, the grounding methods are different according to the different installation occasions. Do you know what kind of grounding methods are used? Next, we will sort out the relevant content for you.

桥架可能存在的安装场合以及如何接地的情况有以下三种：

There are three possible installation situations and grounding methods for the bridge:

1、当允许利用桥架系统构成接地干线回路时，桥架端部之间连接电阻应不大于0.00033欧姆，接地孔应绝缘涂层。在1KV及以下中性点直接接地系统中，受电设备的接地与系统中性线接地相连。

1. When the bridge system is allowed to form the grounding trunk circuit, the connection resistance between the ends of the bridge should not be greater than 0.00033 ohm, and the insulation coating should be removed from the grounding hole. In the 1kV and below neutral point direct grounding system, the grounding of the receiving equipment is connected with the neutral line of the system.

2、装有处动切断供电装轩时，桥架的级长方向金属横截面积应不小于规定值。沿桥架全长另敷设接地干线时，每段（包括非直线段）桥架应少有一点与接地干线可靠连接。

2. When installing the dynamic cut-off power supply installation, the metal cross-sectional area in the direction of the bridge length shall not be less than the specified value. When another grounding main line is laid along the whole length of the bridge, at least one point of each section (including non-linear section) of the bridge shall be reliably connected with the grounding main line.

桥架安装在不同场合如何接地

How to ground the bridge in different occasions

3、对于振动场所，桥架不同的安装场合的接地要点说明：在接地部位的连接处应装置弹簧圈。

3. For vibration places, the grounding points of different installation occasions of bridge: spring coil should be installed at the connection of grounding parts.

电缆桥架之间可利用连接板作为跨接线，把桥架连成一体。在连接板两端的两只连接螺栓上加镀锌弹簧垫圈，桥架之间用软铜线进行跨接，再将桥架与接地线相连，形成电气通路。桥架整体与接地干线应有不少于两处的连接。接地作业完成后需要检查验收。

The connecting plate can be used as the jumper wire between the cable trays to connect the trays as a whole. Galvanized spring washer is added on the two connecting bolts at both ends of the connecting plate. The bridge is bridged with soft copper wire, and then the bridge is connected with the grounding wire to form an electrical path. There shall be no less than two connections between the whole bridge and the grounding main line. After the completion of grounding operation, inspection and acceptance are required.